Four 1-aryl-1H-pyrazole-3,4-dicarboxylate derivatives: synthesis, molecular conformation and hydrogen bonding
Four 1-aryl-1H-pyrazole-3,4-dicarboxylate derivatives, one acid, two esters and a dicarbohydrazide have been synthesized starting from 3-aryl sydnones, and structurally characterized. There is an intramolecular O—H...O hydrogen bond in 1-phenyl-1H-pyrazole-3,4-dicarboxylic acid, C11H8N2O4, (I), and...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
International Union of Crystallography
2018-12-01
|
Series: | Acta Crystallographica Section E: Crystallographic Communications |
Subjects: | |
Online Access: | http://scripts.iucr.org/cgi-bin/paper?S2056989018015864 |